source:other news
release time:2023-03-17
Hits:0
Popular:

Corporation: Ni (OH) 2 + OH- → (←) NIOOH + H2O + E-φ (standard electrode potential) = + 0.49V
Negative poles: M + H2O + E- → (←) MH + OH-φ (standard electrode potential) = -0.829V
Total response: ni (oh) 2 + m → (←) niooh + mh
It can be seen from the above response equation that the electrochemical reactions occurred during the charging and discharge process are all solid -phase transformation mechanisms. There is no intermediate soluble metal ion in the process, and there is no consumption and production of electrolytes, so The internal resistance of nickel -metal hydride batteries is not much different.
Nickel -hydride battery is over -charged and reacted
1. overcharge
Corporation: 4OH- → 2H2O +O2 +4E
Negative poles: 2H2O+O2+4E → 4OH-
2. Excessive discharge
Corporation: 2H2O +2E → H2 +2OH-
Negative poles: H2+2OH- → 2H2O+2E
In the process of overloading and discharge, due to the catalytic effect of hydrogen storage alloy powder, oxygen and hydrogen generated by the positive electrode can be consumed, so that the nickel -metalized battery has the ability to resist overcharge.
At the end of the charging and overcharge, the O2 precipitated on the positive electrode can be diffused to the negative surface and the hydrogen compound through the diaphragm, which is restored to H2O and OH-into the electrolyte, thereby avoiding or reducing the phenomenon of increased pressure accumulation inside the battery. Otherwise, when the battery is over -charged, the MH electrode will generate a large amount of hydrogen, causing the internal pressure of the battery to rise; and at the time of discharge, the H2 precipitated on the positive pole can be quickly absorbed by MH through the diaphragm. When discharging, O2 will be used on the MH electrode, which will cause MH alloys to be oxidized.
Read recommendations:
lithium marine batteries Processor
Cleaning Car Electric Vehicle 12.8V 150Ah 200Ah 12V LiFePo4 Battery Pack
Industrial Applications and Benefits of the 2600mAh 18650 Battery
Lithium battery fault detection.solar powered battery pack
Last article:Comparison analysis of nickel -hydride batteries and lithium batteries.lifepo4 power station
Next article:What are the functions of the battery management system?lifepo4 battery 12v 200ah
related suggestion
lithium ion golf cart batteries Factory
2023-03-22solar battery storage system Factory
2023-04-07solar power battery storage Vendor
2023-03-20solar energy storage wholesale
2023-03-20lithium boat batteries Processor
2023-03-22lifepo4 solar battery Factory
2023-04-07solar generator for rv
2023-05-08solar powered generator
2023-05-0812v 200ah battery
2023-05-08portable power station solar
2023-05-08solar batteries for home
2023-05-08solar power battery storage
2023-05-083.7V NCM 50Ah Semi Solid State Pouch Battery
2025-08-15High Voltage 20kwh 30kwh 40kwh 100kwh Lithium Ion Battery 192V 380V For Solar Energy Storage System
2023-02-0915S 48V 100Ah LiFePo4 Battery for Home Energy Storage Solar System
2023-06-1921700 3.7V Lithium Ion Battery 4800mAh 3C
2025-06-05Lithium Replacing Lead-Acid LiFePo4 Battery Pack 12V 200Ah
2022-09-19Why does lithium ion battery explode
2022-10-14Diagnosing 12V Battery Issues in Mercedes Vehicles: Connectors, Discharge, and Temperature
2025-03-18What are some tips to make the failure rate of electric cars smaller? Live longer?
2022-11-01Energy Independence and Global Security: The Expanding Role of 5kW Solar Battery Systems
2025-03-20Thermal Energy Storage: Technology and Geopolitical Context
2025-03-20The difference between "blade battery" and ternary lithium battery
2022-12-02Lithium battery support policies.12v 100ah lithium ion battery
2023-07-05Which of the ternary lithium batteries and lithium iron phosphate batteries and solid -state batteries will become the future choice?solar battery storage system
2023-05-17Affects the time of drone battery life.lithium golf cart batteries direct sales
2023-04-24Lithium battery explosion type.portable power station solar
2023-06-28